<template>
<div>
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>权限管理</el-breadcrumb-item>
  <el-breadcrumb-item>角色列表</el-breadcrumb-item>
</el-breadcrumb>
<el-card>
    <el-row>
        <el-col>
            <el-button type="primary">添加角色</el-button>
        </el-col>
    </el-row>
    <el-table :data="rolesList" border stripe max-height = "480">
<el-table-column type="expand">
    <template slot-scope="scope">
    <el-row :class="['dbbottom', i1 === 0 ? 'dbtop':'','vcenter']" v-for="(item1, i1) in scope.row.children" :key="item1.id">
        <el-col :span="5">
            <el-tag closable @close="removeRightsById(scope.row,item1.id)">{{item1.authName}}</el-tag>
            <i class="el-icon-caret-right"></i>
        </el-col>
        <el-col :span="19">
            <el-row :class="[i2 === 0 ? '': 'dbtop','vcenter']" v-for="(item2, i2) in item1.children" :key="item2.id">
                <el-col :span="6">
                   <el-tag type="success" closable @close="removeRightsById(scope.row,item2.id)">{{item2.authName}}</el-tag>
                   <i class="el-icon-caret-right"></i>
                    </el-col>
                <el-col :span="18">
                    <el-tag type="warning" v-for="item3 in item2.children" :key="item3.id" closable @close="removeRightsById(scope.row,item3.id)">
                        {{item3.authName}}
                    </el-tag>
                </el-col>
            </el-row>
        </el-col>
    </el-row>
    </template>
</el-table-column>
<el-table-column type="index"></el-table-column>
<el-table-column label="角色名称" prop="roleName"></el-table-column>
<el-table-column label="角色描述" prop="roleDesc"></el-table-column>
<el-table-column label="操作" width="300px">
    <template slot-scope="scope">
        <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
        <el-button type="danger" icon="el-icon-delete" size="mini">删除</el-button>
        <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRightDialog(scope.row)">分配权限</el-button>
    </template>
</el-table-column>
    </el-table>
</el-card>
<el-dialog
  title="提示"
  :visible.sync="rightsDialogVisible"
  width="50%"
  @close="setRightsDialogClosed"
>
<el-tree :data="rightsTree" :props="treeProps" show-checkbox default-expand-all node-key="id" :default-checked-keys="defTree" ref="treeRef"></el-tree>
  <span slot="footer" class="dialog-footer">
    <el-button @click="rightsDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="allotRights">确 定</el-button>
  </span>
</el-dialog>
</div>
</template>
<script>
export default {
  data () {
    return {
      rolesList: [],
      rightsDialogVisible: false,
      rightsTree: [],
      treeProps: {
        children: 'children',
        label: 'authName'
      },
      defTree: [],
      roleiId: ''
    }
  },
  created () {
    this.getRolesList()
  },
  methods: {
    async getRolesList () {
      const { data: res } = await this.$http.get('/roles/')
      if (res.meta.status !== 200) return this.$message.error('获取角色权限失败！！')
      this.rolesList = res.data
      console.log(this.rolesList)
    },
    async removeRightsById (role, rightsId) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户权限, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除！！')
      }
      const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${rightsId}`)
      if (res.meta.status !== 200) return this.$message.error('删除用户权限失败！！')
      this.$message.success('删除用户权限成功！！')
      role.children = res.data
    },
    async showSetRightDialog (role) {
      this.roleiId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) return this.$message.error('获取权限列表失败！！')
      this.rightsTree = res.data
      console.log(this.rightsTree)
      this.getLeafKeys(role, this.defTree)
      this.rightsDialogVisible = true
    },
    getLeafKeys (node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item => this.getLeafKeys(item, arr))
    },
    setRightsDialogClosed () {
      this.defTree = []
    },
    async allotRights () {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]

      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(`roles/${this.roleiId}/rights`, { rids: idStr })
      if (res.meta.status !== 200) return this.$message.error('分配权限失败！')
      this.$message.success('分配权限成功！')
      this.getRolesList()
      this.rightsDialogVisible = false
    }
  }
}
</script>
<style lang="less" scoped>
.el-tag{
    margin: 7px;
}
.dbbottom{
    border-bottom: 1px solid #eee;
}
.dbtop{
    border-top: 1px solid #eee;
}
.vcenter{
    display: flex;
    align-items: center;
}
</style>
